getUsersSysType() UsersSysType
	loadPolicyDoc(ctx context.Context, policy string, m map[string]PolicyDoc) error
	loadPolicyDocWithRetry(ctx context.Context, policy string, m map[string]PolicyDoc, retries int) error
	loadPolicyDocs(ctx context.Context, m map[string]PolicyDoc) error
	loadUser(ctx context.Context, user string, userType IAMUserType, m map[string]UserIdentity) error
	loadSecretKey(ctx context.Context, user string, userType IAMUserType) (string, error)

type ConnDialer func(ctx context.Context, address string) (net.Conn, error)

// ConnectWSWithRoutePath is like ConnectWS but with a custom grid route path.
func ConnectWSWithRoutePath(dial ContextDialer, auth AuthFn, tls *tls.Config, routePath string) func(ctx context.Context, remote string) (net.Conn, error) {
	return func(ctx context.Context, remote string) (net.Conn, error) {

		nodesUpDown:         newNodesUpDownCache(),
	}
}

type nodesOnline struct {
	Online, Offline int
}

func newNodesUpDownCache() *cachevalue.Cache[nodesOnline] {
	loadNodesUpDown := func(ctx context.Context) (v nodesOnline, err error) {
		v.Online, v.Offline = globalNotificationSys.GetPeerOnlineCount()
		return
	}
	return cachevalue.NewFromFunc(1*time.Minute,
		cachevalue.Opts{ReturnLastGood: true},
		loadNodesUpDown)

				apiErr := toAPIError(r.Context(), err)
				writeResponse(w, apiErr.HTTPStatusCode, nil, mimeNone)
			case http.MethodGet:
				writeErrorResponse(r.Context(), w, toAPIError(r.Context(), err), r.URL)
			}
			return
		}
	}

	if globalEtcdClient != nil {
		// Borrowed from
		// https://github.com/etcd-io/etcd/blob/main/etcdctl/ctlv3/command/ep_command.go#L118
		ctx, cancel := context.WithTimeout(r.Context(), defaultContextTimeout)

// only via IAM notifications.
func (sys *IAMSys) LoadGroup(ctx context.Context, objAPI ObjectLayer, group string) error {
	if !sys.Initialized() {
		return errServerNotInitialized
	}

	return sys.store.GroupNotificationHandler(ctx, group)
}

// LoadPolicy - reloads a specific canned policy from backend disks or etcd.
func (sys *IAMSys) LoadPolicy(ctx context.Context, objAPI ObjectLayer, policyName string) error {

	clientPingInterval time.Duration
}

func newMuxStateless(ctx context.Context, msg message, c *Connection, handler StatelessHandler) *muxServer {
	var cancel context.CancelFunc
	ctx = setCaller(ctx, c.remote)
	if msg.DeadlineMS > 0 {
		ctx, cancel = context.WithTimeout(ctx, time.Duration(msg.DeadlineMS)*time.Millisecond)
	} else {
		ctx, cancel = context.WithCancel(ctx)
	}
	m := muxServer{
		ID:        msg.MuxID,

						if _, isZero := pkField.ValueOf(db.Statement.Context, rv); isZero {
							db.AddError(pkField.Set(db.Statement.Context, rv, insertID))
							insertID += pkField.AutoIncrementIncrement
						}
					}
				}
			case reflect.Struct:
				_, isZero := pkField.ValueOf(db.Statement.Context, db.Statement.ReflectValue)
				if isZero {
					db.AddError(pkField.Set(db.Statement.Context, db.Statement.ReflectValue, insertID))
				}
			}

	}
}

func (c *check) mustGetIAMUserInfo(ctx context.Context, admClnt *madmin.AdminClient, accessKey string) madmin.UserInfo {
	c.Helper()
	ui, err := admClnt.GetUserInfo(ctx, accessKey)
	if err != nil {
		c.Fatalf("should be able to get user info: %v", err)
	}
	return ui
}

func (c *check) mustNotCreateIAMUser(ctx context.Context, admClnt *madmin.AdminClient) {
	c.Helper()

	sys.Set(meta.Name, meta)
	globalNotificationSys.LoadBucketMetadata(bgContext(ctx), meta.Name) // Do not use caller context here
	return nil
}

// Delete delete the bucket metadata for the specified bucket.
// must be used by all callers instead of using Update() with nil configData.
func (sys *BucketMetadataSys) Delete(ctx context.Context, bucket string, configFile string) (updatedAt time.Time, err error) {
	if configFile == bucketLifecycleConfig {

	}

	if config.PropagateUnscoped {
		txConfig.PropagateUnscoped = true
	}

	if config.Context != nil || config.PrepareStmt || config.SkipHooks {
		tx.Statement = tx.Statement.clone()
		tx.Statement.DB = tx
	}

	if config.Context != nil {
		tx.Statement.Context = config.Context
	}

	if config.PrepareStmt {
		var preparedStmt *PreparedStmtDB